JP6121833B2 - Electronic device and its control method - Google Patents

Description

  The present invention relates to an electronic device such as a portable terminal, and more particularly to an electronic device capable of setting and releasing a lock state.

  Conventionally, electronic devices that can be set in a locked state are widely known, and an example of this type of device is disclosed in Patent Document 1. In the portable terminal of Patent Document 1, an operation for releasing the lock state is prompted by display of the object, and thus the user can recognize the lock state release method regardless of the language used.

JP 2012-70297 A

  However, in recent years, privacy protection for electronic devices has become important. When another person tries to use a touch screen type electronic device without permission, if the security lock is not set and the touch operation is locked, the other person can easily check the data of the electronic device. For this reason, for example, there is a disadvantage that a display screen before being set to the locked state in which the touch operation is locked is confirmed by another person.

  Accordingly, an object of the present invention is to provide an electronic device that cannot be easily unlocked by another person.

  An electronic device that is an example of the present invention is an electronic device having a touch screen that can be touched and a lock state setting unit that can be set to a locked state that does not execute a predetermined process even if the touch operation is performed, The touch screen displays a lock state release method in the locked state, and displays a first screen when detecting a first operation according to the lock state release method, and releases the lock state. When a second operation different from the method is detected, the second screen is displayed.

  The first screen may be a home screen, and the second screen may be a screen displayed on the display unit before being set to the locked state.

  The electronic device may further include a lock operation setting unit capable of setting the second operation by a user.

  The touch screen may display a plurality of objects when in the locked state, and the second operation may be a touch operation on one object among the plurality of objects.

  The one object may be a current time display, a radio wave reception state display, or a battery remaining battery capacity display.

The electronic device may further include a hard key, and the one object may be touch-operable by an operation on the hard key in the locked state.

  The electronic device may further include a hard key, and the display of the one object may be changed when the hard key is pressed in the locked state.

  A control method for an electronic device, comprising: a touch screen that allows touch operation; and a lock state setting unit that can be set to a lock state in which predetermined processing is not performed even when the touch operation is performed, the control method including the lock The first step of detecting whether or not the first operation according to the unlocking method of the locked state is detected when the unlocking method of the locked state is displayed in the state, and is different from the unlocking method of the locked state And a second step of detecting whether a second operation has been detected.

The electronic device and the control method thereof as an example of the present invention display a first screen when a first operation according to the unlocking method is detected, and a second operation different from the unlocking method If detected, the second screen is displayed. Thus, if another person uses this electronic device, the other person can be guided to the first screen according to the unlocking method of the locked state, and the user can, for example, The display can be transitioned to a second screen such as the screen displayed before the lock setting.

It is a front view which shows the external appearance of an electronic device. It is a block diagram which shows the electric constitution of an electronic device. (A) is a figure which shows an example of 1st operation of the locked state cancellation | release of an electronic device, (b) is a figure which shows the screen (home screen) after cancelled | released by said 1st operation. (A) is an example of the second operation for releasing the lock state of the electronic device, and (b) is a diagram showing a screen (received mail screen) after being released by the second operation. (A) And (b) is a figure which shows the example of the 2nd operation of the lock state cancellation | release of an electronic device. (A) is a figure which shows an example of the 1st operation of the lock state cancellation | release of an electronic device, (b) is a figure which shows the example of the 2nd operation of the lock state cancellation | release of an electronic device. (A) And (b) is a figure which shows the registration example of 2nd operation of the lock state cancellation | release of an electronic device. (A) And (b) is a figure which shows the registration example of 2nd operation of the lock state cancellation | release of an electronic device. It is a figure which shows the example of 2nd operation of lock state cancellation | release of an electronic device. It is a figure which shows the example which notifies a user of 2nd operation of lock state cancellation | release of an electronic device. It is a flowchart which shows the setting process of a locked state. It is a flowchart which shows a lock state cancellation | release process.

FIG. 1 is an external view showing the external appearance of the surface of a mobile phone 10 which is an example of the electronic apparatus of the present embodiment. Referring to FIG. 1, the mobile phone 10 has a straight shape and has a flat rectangular casing C. The microphone 18 is built in the housing C, and the opening OP2 leading to the built-in microphone 18 is provided on one surface in the length direction of the housing C. A speaker 22 (not shown) is built in the housing C. The opening OP1 that communicates with the built-in speaker 22 is provided on the other surface in the length direction of the housing C. The display 30 is attached so that the monitor screen can be seen from the front side of the housing C. An LCD monitor is used as the display 30, but other display devices such as an organic EL panel may be used. And display 30
Is provided with a touch panel 38 to form a touch screen 1. In the present embodiment, the touch screen 1 described below indicates the display 30 provided with the touch panel 38 on the back surface. In the present embodiment, the touch screen 1 is not limited to the example including the display 30 and the touch panel 38 as described above. For example, a display having a function of detecting a touch operation without the touch panel 38 is also included.

  The key input unit 26 includes volume keys 26a and 26b, a power key 26c, a home key 26d for changing the display to the home screen when pressed. These keys are provided on the front surface or side surface of the housing C.

  For example, the user inputs a telephone number by performing a touch operation on the touch screen 1 on which dial keys are displayed, and makes a telephone call by performing a touch operation on the touch screen 1 on which call keys are displayed. Make outgoing calls. When the call ends, the user performs a call end operation using the touch screen 1 on which the end call key is displayed. In addition, the user performs menu selection and confirmation by touching the soft keys and menus displayed on the touch screen 1. Then, the user turns on / off the power of the mobile phone 10 by long pressing the power key 26c.

Referring to FIG. 2, the mobile phone 10 of this embodiment includes a processor 24 called a CPU or a computer. Further, the wireless communication circuit 14, A / D 16, D / A 20, key input unit 26, display driver 28, flash memory 32, RAM 34, and touch panel control circuit 36 are connected to the processor 24. An antenna 12 is connected to the wireless communication circuit 14, a microphone 18 is connected to the A / D 16, and a speaker 22 is connected to the D / A 20 via an amplifier (not shown). A display 30 is connected to the display driver 28. A touch panel 38 is connected to the touch panel control circuit 36.

  The processor 24 is a control IC and controls the entire mobile phone 10. The RAM 34 is used as a work area (including a drawing area) or a buffer area of the processor 24. Content data such as characters, images, sounds, sounds and videos of the mobile phone 10 is recorded in the flash memory 32.

  The A / D 16 converts an analog audio signal for audio or sound input through the microphone 18 connected to the A / D 16 into a digital audio signal. The D / A 20 converts (decodes) the digital audio signal into an analog audio signal and applies the analog audio signal to the speaker 22 via the amplifier. Therefore, sound or sound corresponding to the analog sound signal is output from the speaker 22.

  The display driver 28 controls display on the display 30 connected to the display driver 28 under the instruction of the processor 24. The display driver 28 includes a VRAM that temporarily stores image data to be displayed. Then, the processor 24 stores the image data to be displayed on the display 30 in this VRAM.

The touch panel 38 is a capacitance method that detects a change in capacitance between electrodes caused by an object such as a finger approaching the surface. For example, one or more fingers touch the touch panel 38. To detect. The touch panel 38 is a pointing device for instructing an arbitrary position within the screen of the display 30. For example, when the touch panel 38 is operated by pressing, stroking (rubbing), or touching the surface with a finger, the touch panel 38 detects the operation. Then, when a finger touches the touch panel 38, the touch panel control circuit 36 specifies the position of the finger and coordinates data indicating the operated position is received by the processor 24.
Output to. That is, the user can input an operation direction, a figure, or the like to the mobile phone 10 by pressing, stroking, or touching the surface of the touch panel 38 with a finger.

  Here, an operation in which the user touches the surface of the touch screen 1 with a finger is referred to as “touch” by the finger. On the other hand, the operation of releasing the finger from the touch panel 38 is referred to as “release the touch” or “release”. The coordinates indicated by the touch are referred to as “touch point (first position)”, and the coordinates indicated by the release are referred to as “release point (second position)”. Further, the operation of stroking the surface of the touch panel 38 is referred to as “slide”, “slide touch operation”, or “operation of moving by bringing a contact member into contact”. Further, an operation in which the user touches the surface of the touch panel 38 and subsequently releases it is referred to as “touch and release”. The operations performed on the touch panel 38 such as touch, release, slide, and touch-and-release are collectively referred to as “touch operation (contact)”.

  Note that the touch operation is not limited to a finger, and may be performed by other objects such as a touch pen with a conductor attached to the tip. Further, as a detection method of the touch panel 38, a surface-type capacitance method may be employed, or a resistance film method, an ultrasonic method, an infrared method, an electromagnetic induction method, or the like may be used. Further, even if the finger is not touching the surface of the touch screen 1, the touch operation is regarded as a touch operation when a predetermined threshold value for detecting the touch operation is exceeded.

  The wireless communication circuit 14 is a circuit for performing wireless communication in the CDMA system. For example, when the user instructs to make a call using the key input unit 26, the wireless communication circuit 14 executes a call sending process under the instruction of the processor 24 and outputs a call sending signal via the antenna 12. The telephone call signal is transmitted to the other party's telephone through a base station and a communication network (not shown). Then, when an incoming call process is performed at the other party's telephone, a communicable state is established, and the processor 24 executes a call process.

  The normal call processing will be described in detail. The modulated audio signal transmitted from the other party's telephone is received by the antenna 12. The received modulated audio signal is demodulated and decoded by the wireless communication circuit 14. The received voice signal obtained by these processes is converted to an analog voice signal by the D / A 20 and then output from the speaker 22. On the other hand, the transmission voice signal captured through the microphone 18 is converted into a digital voice signal by the A / D 16 and then given to the processor 24. The transmission signal converted into the digital audio signal is subjected to encoding processing and modulation processing by the wireless communication circuit 14 under the instruction of the processor 24, and is output via the antenna 12. Therefore, the modulated voice signal is transmitted to the other party's telephone through the base station and the communication network.

When a call signal from the other party's telephone is received by the antenna 12, the wireless communication circuit 14 notifies the processor 24 of an incoming call (sometimes called an incoming call). In response to this, the processor 24 controls the display driver 28 to display the caller information (phone number) described in the incoming call notification on the display 30. At substantially the same time, the processor 24 outputs a ring tone from a speaker (not shown). Further, the processor 24 vibrates the mobile phone 10 or emits an LED (not shown) to notify the user of an incoming call.

  Then, when the user performs a response operation using the call key, the wireless communication circuit 14 executes a telephone incoming call process under the instruction of the processor 24, and a communicable state is established. Execute call processing.

  Further, when a call end operation is performed with the call end key after shifting to the call ready state, the processor 24 controls the wireless communication circuit 14 to transmit a call end signal to the other party. After transmitting the call end signal, the processor 24 ends the call process. The processor 24 also ends the call process when a call end signal is received from the other party first. Furthermore, the processor 24 also ends the call process when a call end signal is received from the mobile communication network regardless of the call partner.

<Lock control>
Here, the mobile phone 10 which is an example of the electronic apparatus according to the present embodiment can be in a locked state in which the touch panel control circuit 36 does not execute the specific process even when a touch operation is performed. When the touch operation is performed on the mobile phone 10 in the locked state, the touch operation is detected, but it is assumed that the touch operation is not performed and the predetermined process is not executed. In addition, a case where the predetermined processing is not executed by preventing the touch operation itself from being detected except for a part of the touch panel 38 is also included.

  The above-described specific processing indicates, for example, activation or execution of a specific application (call, mail, game, video, photo, etc.). As the specific process, for example, all applications included in the mobile phone 10 may be used.

  For example, when the display of the display 30 is turned off by operating the power key 26c, a transition to the locked state is made, and the touch operation for executing the specific process becomes invalid. Further, when the power key 26c is operated again in the locked state, only a part of the touch screen 1 is detected while the locked state is maintained. And if the touch operation mentioned later is performed, a locked state will be cancelled | released.

  FIG. 3A shows the display of the touch screen 1 in the locked state. The touch screen 1 displays a lock state release object 2 that is operated to release the lock state, and further shows a lock state release method for operating the lock state release object 2 to release the lock. Yes. In FIG. 3A, “Touch button to release locked state” is displayed as a method for releasing the locked state.

  As shown in FIG. 3A, when the finger A touches the locked state release object 2 according to the lock state release method, the display on the touch screen 1 of the mobile phone 10 is as shown in FIG. Transition to the home screen display. The home screen is a screen that is displayed after the electronic device is turned on, and can be used to select each application. For example, as shown in FIG. 3B, the touch screen 1 displays a plurality of application icons 4 for starting each application.

  As shown in the example of FIG. 3 described above, when a touch operation is performed according to this unlocking method, even if there is an application that was displayed before entering the locked state, the home screen is displayed. The For this reason, if another person uses the electronic device of this embodiment, there is a high possibility that the other person will release the lock state according to the displayed lock state release method. It is unlikely that others will see applications or websites that you do not want others to see.

  However, when the user releases the lock state as shown in FIG. 3, it takes time to operate from the home screen to a desired screen in order to display again the application or website before the lock state is set. Therefore, in the present embodiment, it is possible to perform display before entering the locked state by releasing the locked state by another operation different from the method for releasing the displayed locked state. Although a specific example is shown in FIGS. 4-6, this invention is not limited to these.

  FIG. 4A shows an operation (second state) for moving the lock state release object 2 unlike the operation of “locking the lock state by touching a button” (corresponding to the first operation) which is a method for releasing the lock state. (Corresponding to the above operation) is shown. In FIG. 4B, a screen after the operation of moving the unlocked object 2 is displayed. This screen is the screen that was displayed before entering the locked state. Specifically, it is a received mail from a specific woman and corresponds to a screen that other people do not want to see.

  FIG. 5 shows a specific example of the second operation different from FIG. 4 (as described above, the unlocking operation of the locked state different from the displayed unlocking method is hereinafter referred to as the second operation). In FIG. 5A, by not touching the displayed lock state release method “flick to release lock state”, the lock state release object 2 is touched (for example, long-pressed). The received mail screen is displayed. Further, in FIG. 5B, the received mail screen of FIG. 4B is displayed by moving the object such as the finger A from the periphery of the touch screen 1 to the unlocked object 2.

  As a specific example of the second operation different from FIG. 5, FIG. 6B shows a specific example in which the lock state release object 2 is not displayed. First, as a comparison, FIG. 6A does not display the lock state release object 2, and moves the finger anywhere on the touch screen 1 according to the displayed lock state release method “flick to release lock state”. A first operation for moving A is shown. In FIG. 6A, the home screen shown in FIG. 3B is displayed by the above operation.

  On the other hand, in FIG. 6B, the display of the unlocking method display is touched (for example, long press) without following the above-described unlocking method “flick to unlock”. The received mail screen 4 (b) is displayed.

  FIG. 7 shows a screen for registering the second operation in the mobile phone 10. Specifically, an example of registration of the second operation shown in FIG.

  First, in the second operation registration screen, a start display is displayed on the touch screen 1 as shown in FIG. When the start display is selected, the touch operation is detected until the displayed stop display is selected. The operation until the stop display is selected can be set as the second operation. In FIG. 7B, an operation for moving the locked state release object 2 as shown in FIG. 4A to the periphery of the area of the touch screen 1 is registered as the second operation.

  In registration of the second operation, an object other than the lock state release object 2 can be set. For example, in FIG. 8A, the operation of moving the icon 3b indicating the radio wave reception state by the antenna 12 and the icon 3c indicating the remaining battery capacity of the secondary battery is registered as the second operation. In FIG. 8B, an operation for moving the current time 3a is registered as a second operation.

  As described above, the touch operation related to the object other than the lock state release object 2 is also registered as the second operation, and the lock state can be released according to the operation.

  7 and 8 show the registration example for the object operation, but it is not necessary to operate the object at the time of registration. For example, the operation can be performed by moving the finger A on the touch screen 1 or the like. You can register even if it exists.

  As described above, when another person operates, it is unlikely that the second person will notice the second operation, but there may be a case where it is accidentally discovered by another person that the object can be operated. Therefore, as shown in FIG. 9, a touch operation may be accepted only when the key input unit 26 is pressed as a hard key. In addition, when registering this method in the electronic device, if the finger A1 is pressed on the hard key after the start is pressed, the same touch operation as in FIGS. 7 and 8 is performed by using the finger A2. Good.

  The user may forget the operation after registering the operation of the object. In this case, for example, as shown in FIG. 10, by pressing the key input unit 26 or the like as a hard key, the object set to cancel the second operation is slightly moved as shown by the arrow to the user. You may let me know. Note that the method of notifying the user is not limited to this, and for example, the object may be slightly blinked.

Hereinafter, a flow such as a lock state setting process will be shown. The processor 24 performs a lock state transition process shown in FIG. 11 and a lock state release process shown in FIG. 12 under the control of a Linux (registered trademark) -based OS such as Android (registered trademark) and REX, and other OSs. Including multiple tasks in parallel.

  FIG. 11 is a flowchart of the lock state transition process. For example, when the power of the mobile phone 10 is turned on, the processor 24 determines whether or not an operation has been performed in step S1. That is, the processor 24 determines whether a touch operation or a key operation has been performed within a certain time. If “NO” in the step S1, for example, if a touch operation and a key operation are not performed for 60 seconds, the processor 24 proceeds to a step S3. On the other hand, if “YES” in the step S1, that is, if the no-operation timer has not expired, the processor 24 determines whether or not an operation for shifting to the locked state has been performed in a step S2. For example, the processor 24 determines whether or not the power key 26c has been operated. If “NO” in the step S2, that is, if the operation for shifting to the locked state is not performed, the processor 24 returns to the step S1.

  On the other hand, if “YES” in the step S2, that is, if an operation for shifting to the locked state is performed, the processor 24 turns off the power of the display 30 in a step S3. That is, the processor 24 issues a command to turn off the power of the display 30 to the power supply circuit. Subsequently, the processor 24 sets a lock state in step S4, and ends the lock state setting process.

  FIG. 12 is a flowchart showing the unlocking process shown in FIGS. For example, if a menu key is operated while the lock state is set, the processor 24 displays a lock screen in step S5. That is, the processor 24 displays the lock screen shown in FIG. 3A on the display 30 after issuing a command to turn on the power of the display 30.

  Subsequently, the processor 24 determines whether or not it is touched in step S6. That is, it is determined whether or not a touch is detected by the touch panel control circuit 36. If “NO” in the step S6, that is, if a touch is not detected by the touch panel control circuit 36, the processor 24 repeatedly executes the process of the step S5.

  If “YES” in the step S6, that is, if a touch is detected by the touch panel control circuit 36, the processor 24 determines whether or not the touch detected by the touch panel control circuit 36 is not detected in a step S7 ( To determine if it has been released. If it is determined that the touch is not detected, the processor 24 displays the home screen as shown in FIG. 3B and ends the process in step S8.

  If “NO” in the step S7, that is, if the state in which the touch is detected by the touch panel control circuit 36 is maintained, the processor 24 determines whether or not the slide is performed in the step S9. That is, it is determined whether or not a slide is detected by the touch panel control circuit 36. If “NO” in the step S9, that is, if the slide is not detected by the touch panel control circuit 36, the processor 24 repeatedly executes the process of the step S7. If “YES” in the step S9, that is, if a slide is detected by the touch panel control circuit 36, the processor 24 displays a received mail screen as a pre-lock screen as shown in FIG. 4B in a step S10. Display and finish the process.

The above-described control related to the lock state transition and release is based on a program. These programs may be stored in the HDD of the data distribution server and distributed to the mobile phone 10 via a network. In addition, the storage medium may be sold or distributed in a state where these programs are stored in an optical disk such as a CD, DVD, or BD (Blu-ray Disc), a USB memory, or a memory card. Then, when those programs downloaded through the above-described server or storage medium are installed in an electronic device having the same configuration as that of this embodiment, the same effect as this embodiment may be obtained.

  In the above example, the case where the present invention is applied to a mobile phone as an electronic device has been described as an example. However, the present invention can also be applied to an electronic device other than a mobile phone. For example, as an electronic device, the technology of the present invention can be applied to a game machine, a notebook computer, a portable navigation system, and the like.

DESCRIPTION OF SYMBOLS 1 Touch screen 2 Lock state cancellation | release object 10 Mobile phone 12 Antenna 14 Wireless communication circuit 24 Processor 26 Key input part 34 RAM
36 Touch Panel Control Circuit 38 Touch Panel A Finger

Claims (7)

A touch screen capable of touch operation,
An electronic device having a lock state setting unit that can be set to a lock state in which a predetermined process is not executed even if a touch operation is performed,
The touch screen is
In the locked state, display the unlocking method of the locked state,
If the first operation according to the unlocking method is detected, the home screen is displayed,
An electronic device that displays a screen displayed on the display unit before being set to the locked state when a second operation different from the unlocking method of the locked state is detected. The second further having a locking setting unit capable of setting by the user operations, claim 1 Symbol mounting electronic devices. The touch screen displays a plurality of objects in the locked state,
The second operation is the a touch operation on the first object among the plurality of objects, according to claim 1 or 2, the electronic device according. The electronic device according to claim 3 , wherein the one object is a current time display, a radio wave reception state display, or a battery remaining battery capacity display. A hard key,
Wherein during the locked state, the operation to the hard key, the first object becomes touchable operation, according to claim 3 or 4 electronic apparatus according. A hard key,
During the locked state, the operation to the hard key, change the display of the first object, according to claim 3 or 4 electronic apparatus according. A touch screen capable of touch operation,
A control method of an electronic device having a lock state setting unit that can be set to a lock state in which a predetermined process is not executed even if a touch operation is performed,
The electronic device is
When the unlocking method of the locked state is displayed in the locked state,
If the first operation according to the unlocking method is detected , the home screen is displayed ,
Wherein when detecting a different second operating method of releasing the locked state, that displays a screen that the has been displayed on the display unit before it is set in the locked state, the control method of the electronic device.

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